Glass cutting mechanism



July 26, 1932.

J. A. BOUSH 1,869,044

GLASS CUTTING MECHANISM Filed Jan. 21, 1928 2 Sheets-Sheet l ZIIIIIIIIIIIIIIIIIIIIlllllllIllllIlIIIIIIIIllllllllllllllllIlllllllllllllllllllllllllllll llllllllllllllIllllllllllllllll IHVENTOR,

John A.Boush,

5 ma QW Atto neys.

July 26, 1932. J. A. BOUSH 1,869,044

GLAS S CUTTING MECHANISM Filed Jan. 21, 1928 2 Sheets-Sheet 2 mvtn TOR, John A. Boush,

Patented July 26, 1932 UNITED STATES PATENT OFFICE JOHN A. BO'USH, F VINCENNES, INDIANA, ASSIGNOR TO BLACKFORD WINDOW G LL-SB COMPANY, 01 VINCENNFS, INDIANA, A CORPORATION OF INDIANA GLASS CUTTING MECHANISM Application filed January 21, 1928. Serial No. 248,848.

My invention relates to apparatus for accurately cutting a continuous ribbon of glass into sheet lengths.

An object of the invention is to move the ribbon of glass in a vertical direction and score it transversely to its direction of travel while so moving; all of the scoresbeing parallel to each other.

A further object is to provide a pressure foot to contact the top edge of the glass ribbon and transmit corresponding vertical travel to a glass cutter which simultaneously moves horizontally to score the ribbon.

The object is to score and break the glass ribbon while being held vertically, to facilitate the removal of the sheet lengths from the cuttin machine.

Other 0 jects and advantages of the invention will become apparent during the course of the following description when taken in connection with the accompanying drawings.

My invention is here described in one particular form as shown in the accompanying drawings, in which Fig. 1 is a front elevation of my invention; Fig. 2, a side elevation; Fig. 3, a section on the line 3-3 in Fig.1; Fig. 4, a detail in rear elevation of the transverse bar adjusting means;

Fig. 5, a fragmentary top plan view of the detail as shown in Fig. 4; and

Fig. 6, a fragmentary rear elevation of the adjustable glass stop.

Like characters of reference indicate like arts throughout the several views of the rawings.

I appl my invention at the extreme top end oft e vertically positioned column of 4c rollers 10 and 11 which draw the glass in a continuous sheet 12 directly from a molten mass of glass in a drawing chamber of a furnace below (not shown), the method and means of drawin the glass not formin a part of this particular lnvention. A p attively to have their inner edges project in- L wardly beyond the columns and to be exactly parallel on to the other and also parallel to the longitudinal edges of the glass 12.

A transverse bar 21 is carried in front of the plates 19 and 20 by the cables 22 and 23 secured to near the respective ends of the bar 21, which cables pass up over around the pulleys 24 and 25 .and down behind the columns 16 and 17 to carry the counter-balance weights 26 and 27- The bar 21 is maintained always in a horizontal position exactly normal to the inner edges of theplates 19 and 20 by means of trolley wheels 28 engaging the inner edges of the plates, and. adjustably carried by the bar 21.

Referring to Figs. 4 and 5, a pair of the wheels 28 are rotatably carried in a spaced apart relation on a wheel plate 29 which is pivotally attached to a sliding bracket 30. This bracket 30 has the flanges 31 engaging along the top and under sides of the bar 21, and a central longitudinal, slot 32 through which is'slidingly passed a bolt 33 to be secured in the bar 21. The wheel plate 29 has an car 34.- on each side of the pivot point and bolts 35 are passed through the cars 34 and also through ears 86 on the bracket 30, whereby by selectively tightening and loosening the nuts 37 on the bolts 35, the wheel plate 29 may be rocked about its pivot and maintained at any precise angle desired. The inner end of the slidin bracket 30 carries an ear 38 through w 'ch is passed the bolt 39, and a bracket fixed to the bar a short distance in from the sliding bracket likewise has the ear 41 to receive the other end of the bolt 39 therethrough so that by turning the nut 42 the a sliding bracket 30 may be moved longitudinally along the bar 21 to move the trolley wheels 28 correspondingl When the desired adjustment is secure the nut 43 on the bolt 33 is tightened to grip the bracket 30 10 against the bar 21. The bar 21 is provided with the above described adjusting means on each end.

To the back side of the bar 21'is attached a bracket 45 throu h which a stop bar 46 is .5 slidingly, vertically guided. A foot 47 is carried on the lower end of the bar 46 and is -preferably made of a material that is not heatconducting. A cam 48 eccentrically pivoted in the bracket is rocked by the lever 49 to en press against the side of the bar 46 to retain the bar at desired elevations.

The transverse bar 21 carries the upwardly glass. A glass cutter is held in the lower end of the rule 54 to project backwardly toward the lass 12.

Normal the stop bar 46 is raised and secured in tlie position shown in Fig. 1, and the bar 21 is pushed down by an operator standing on the platform 13 to allow the glass 12 coming upwardly from between the rollers to contact the foot 47, and as the bar 21 and the arts carried thereon are counter-balance by the weights 26 and 27 but a very slight pressure is required to carry the bar 21 along upwardl as the glass 12 moves. An o erator below t e platform 13 in front of t e glass 12 moves the cutter 55 along over; the glass to describe a line AB (Fi 1) which line 'AB is normal to the edge 0 the lass, although the cutter 55 has been carried upwardl by the bar 21 while the operator has move it horizontally across the glass.

The platform operator pushes the bar 21 upwardly out of the way, grasps the glass 12 by its SldB edges and snaps it backwardly line AB. The bar 21 is again lowered to permit the oncoming glass 12 to contact the foot 47 as before to repeat the foregoing operations.

Occasionally, due to improper .annealing, the glass has internal stresses which upon the slightest provocation cause a crack to start running through the glass and the oncomingl sheet of glass 12 will break across somew at on a line CD (Fig. 1). In order to whereupon a clean break is had along the square up the glass, after such a break without having to waste an appreciable length, the sto bar 46 ma be quic ly drop ed as indicate by the das line position in ig. l, to allow the foot 47 to contact the oncoming glass so that the cutter 55 may be run across on the line AB just below the broken edge sufliciently to prevent the starting or running of new cracks or checks, so that the ortion of glass between the lines AB and may be removed and the straight edge AB then be presented against the foot 47 which has been returned to its normal position.

While I have here described and shown my invention in the form now best known to me, it is obvious that the structure so shown may be varied considerably without de arting from the spirit of the invention, and therefore do not desire to be limited to the precise structure, nor any more than may be required by the following claims.

What I claim as new and desire to secure by Letters Patent is:

1. In a machine for cutting a moving sheet of glass, a pair of spaced apart des, a transverse bar movable in advance of t h e moving sheet of glass, means for movably tracking the transverse bar on the guides, a carrier, means for movably supporting it on the transverse bar, a rule, means for adjustably supporting the rule from the carrier, a glass cutter supported by the rule, a stop-bar havin a member to contact the oncoming glass, an means for supporting the stop-bar from the transverse bar.

2. In a machine for cutting a moving sheet of glass, a pair of spaced apart guides, a transverse bar movable in advance of the moving sheet of glass, means for approximately balancing it, means for movably tracking the transverse bar on the guides, a wheeled carrier, means for movably supporting it on its wheels by the transverse bar, a rule, means for supporting the rule from the wheeled carrier, said rule being adjustable longitudinally, a glass cutter supported by the rule, a stop bar having a foot member to contact the oncoming glass, said stop bar being sup- .ported by the transverse bar and adjustable longitudinally to vary the distance of the foot member from the transverse bar.

3. In a machine for cutting a moving sheet of glass, a pair of spaced apart guide plates parallel to the direction of travel of the sheet, a transverse bar normal to the inner edges ofthe plates and movable in advance of the moving sheet'of glass, said bar having longitudinal flanges, means comprising trolley wheels tracked on the inner edges of the plates for movably maintaining the bar, a carrier movably mounted on the flanges of the bar, a rule secured to the carrier adjustable in the length of the rule, a glass cutter carried by the rule, and a stop bar carried by the b ll transverse barsaid stop bar having a root to'contact the oncoming glass.

a. In a machine for cutting a moving sheet of glass, a pair of spaced apart guides, a transverse bar movable in advance of the moving sheet of glass, a cord and weight at each end of the bar to approximately balance it, a trolley means at each end of the transverse bar tracking the bar on the guides, a carrier, wheeled means for movably mounting the car rier on the transverse bar, a rule having a longitudinal slot, bolts through the slot attachin the rule to the carrier, a glass cutter carrie by the rule, a stop-bar having a foot extending into the ath of the oncoming glass and clamp means or adjustably securing the stop-bar to the transverse bar.

5. In a machine for cutting a sheet of glass moving up vertically, a air of vertical guldes, a transverse bar mova le in advance of the moving sheet of glass, means for movably supporting it constantly normal with and by the guides, a carrier, means for movably supporting it on the transverse bar, aqvertical rule, means for supporting the rule from the carrier, a glass cutter supported by the rule, a vertical stop-bar having a foot projecting into the path of the glass and means for adjustably securing the stop-bar to the transverse bar.

6, Ina machine for cutting a vertically moving sheet of glass, a pair of relatively fixed spaced-apart guides, a transverse bar located between the guides movable in advance of the moving sheet of glass, adjustable means between the ends of the bar and the guides comprising a rocking plate having members to ear against the guides and bolts to adjust the plate, a carrier, means for movably supporting it on the transverse bar, a rule, means for adjustably supporting the rule from the transverse bar, a glass cutter supported by the rule, a stop-bar having a member to contact the oncoming glass and means for supporting the stop-bar from. the transverse bar,

7.. In a machine for cutting a vertically movable sheet at glass, a pair of relatively fixed spaced apart guides, a transverse bar located between the guides movable in ad= vance of the moving sheet of glass, a pair or spaced apart trolley wheels at each end of the bar tracking on the guides, wheel plates connecting the wheels with the ends or the bar,

V means for adjusting the angles of the plates relative to the bar, means for varying the positions of the plates longitudinally of the transverse bar, means to move the transverse bar by contact with the oncoming glass, a car rier movably mounted on the transverse bar, a rule supported by the carrier and a glass cutter supported by the rule.

8. In a devicefor cutting lengths from a verticallv moving sheet of glass, a transverse glass nee-viable in advance of the erally of the glass and a cutter carried by the rule, said rule being adjustable longitudinally to vary the distance of the cutter from the bar.

In testimony whereof I afiix my signature.

JOHN A. BOUSH. 

